This version of Unity is unsupported.
Method group is Obsolete

NetworkInstanceId.Invalid

Obsolete The high level API classes are deprecated and will be removed in the future. public static NetworkInstanceId Invalid;

Description

A static invalid NetworkInstanceId that can be used for comparisons.

The default value of NetworkInstanceId.Value is zero, and IsEmpty() can be used to check this. But NetworkInstanceId.Invalid is available for specifically setting and checking for invalid IDs.